Felix and Hermione sat opposite each other. He tapped the armrest of the dark sofa with his index finger. The little witch found herself silently appearing in the thinking room across a small low table.

'The professor's spells are becoming more and more invisible.' Hermione thought to herself. It has been more than a year since she first entered here. From the distortion and subversion of colors and shapes at the beginning to being able to pull her in silently now, the professor's control over this magic is self-evident.

Hermione is very familiar with this place. She looked at the furnishings in the room easily, and then her brows frowned.

The professor's half of the space has not changed much: the main colors are brown, black, and dark green, occasionally dotted with beige and soft gray, giving people a rich color and highlighting a calm and heavy feeling. The

dark chestnut brown carpet is soft and comfortable, with thousands of large books piled on it. These books complement the black wall bookshelf, the square table with a dull luster, and the heavy dark green curtains.

Of course, there are also an increasing number of ancient magic symbols of different colors. They are like the spirits of the whole house, bringing vitality and magical visual enjoyment.

Hermione can imagine what the professor looks like when he comes to the hut alone - sinking himself into the sofa, calling a book casually, a naughty magic symbol jumps in front of his eyes, and is flicked away by his fingers...

But now she always feels that something is wrong today. Is it that the color of the carpet under her feet has dimmed, or that the green curtain that rolls up a corner from time to time has become quiet?

Maybe everything is her illusion?

"Miss Granger?" Felix looked at his assistant strangely. She looked around nervously as soon as she came in.

Hermione also said in confusion: "Professor, your thinking hut gives me a strange feeling, like - more heavy? Or solemn -" She stood at the intersection of their minds and looked at her half of the space suspiciously.

There is a clear modern decoration style there, with soft sunlight falling, light brown carpet, light yellow curtains, and two pots of green plants on the small round table in the center, which have not changed much from a year ago.

' Comparing them like this, the weirdness becomes more obvious. ' Hermione thought, and she finally thought of a word to describe her feeling: "Dark style?"

Felix laughed dumbly, "Why do you think so?"

Hermione shook her head, "It just suddenly occurred to me that it doesn't look much different, but some details give people a different feeling." Felix understood

a little, and he said thoughtfully: "You reminded me that this is the external reflection of our inner world. It just so happens that I have a new understanding of magic recently. It will be fine in a few days."

"Let's start today's class, Miss Granger."

Hermione temporarily put aside her doubts and sat back in her seat. She and Felix began to discuss the progressive relationship of magic runes.

"Professor, starting from a single rune, to a rune circuit, to the rune ball I saw, and the complex circuits that overlap and nest on the chestnut wood plate today, does this mean that the more complex the rune structure, the more advanced it is?"

"If we talk about functional realization, it is indeed true. A single rune has a single attribute, and we humans always want to realize more and more complex functions, so we have to work hard to study how to combine more runes together."

"Let me give you an example," Felix held a rune symbol in his hand, "Flame, this rune itself contains a lot of possibilities. The effect of my use and yours is definitely completely different, because we have different levels of understanding of it."

The magic symbol in his hand kept transforming rapidly between runes and flames.

Hermione also quickly constructed a flame rune, but her transformation speed was obviously slower than before, and after two or three changes, the structure of the rune symbol was no longer stable, and finally turned into green smoke with a "hiss".

"This kind of understanding of magic itself is actually very difficult to cheat. Once you understand it, you understand it. There is no shortcut. But if you just want to increase the power of the flame, there are actually many ways -"

Felix grabbed some magic runes from the air, "For example, I want to enlarge the flame -" A dozen magic runes were connected to the original magic rune that symbolized flame, and the small flame that was originally the size of a palm suddenly expanded to the size of a pumpkin;

"I also want it to burn more fiercely..." He grabbed some more magic runes and added them in, just like stuffing some seasonings in, and the pumpkin-sized fireball began to burn violently, accompanied by a "crackling" sound;

"At this point, this magic is already difficult to control, and I must emphasize that the thinking hut is not real. What I can do here does not mean that I can perfectly replicate it in the outside world... Back to the topic, I also want to increase the temperature -"

The new magic runes were combined together and thrown into the flames. The orange-red flame became brighter, quickly transitioning to bright yellow and bright white, and then there was even a hint of blue.

Felix said in a relaxed tone: "If it were in reality, without any protection, we would burn ourselves, so the saying that ancient magic is dangerous is not false. From the ancient books I have seen, it shows that too many people were ruined on their first successful spellcasting."

"Go on - in fact, at this moment we have obtained a powerful enough magic, but obviously we want more: to make it controllable, to accumulate magic power, or to shape it..."

"If you have a deep enough understanding of magic and are very skilled in mobilizing magic power, some steps can be omitted. In theory, all magic in the world is the product of the mobilization and transformation of magic power. But most people, including you and me, are far from being able to do whatever they want."

Hermione looked nervously at the blue fireball in the professor's hand, which had reached a diameter of one meter. The air around her began to distort. Although she knew that everything here was constructed by the mind, she couldn't help feeling fear.

Felix waved his hand and the blue fireball disappeared. "Okay, the game is over. What you just saw was just a demonstration of thinking. I can't do it so easily in reality. I hope you won't misunderstand me."

"I want to reiterate that ancient magic is very dangerous."

Hermione obviously accepted this statement. Next, she practiced ancient magic runes step by step. In addition to learning new content, she also needed to deepen her understanding of magic runes. A major criterion for understanding is "being able to transform magic rune symbols into corresponding magical meanings."

She counted on her fingers and found that only a few of them, such as "Bison Power", "Light", and "Flame", really reached the level of "understanding".

There is a long way to go~

Felix encouraged her and said, "At the next Magic Rune Club meeting, I will disassemble an ancient magic and integrate it into the teaching. If you progress fast enough, I will teach you the magic rune combination method of this ancient magic. The same goes for others."

Hermione's heart was pounding. She knew that the professor's attitude towards ancient magic has always been very cautious. In the past year or so, the two of them have had very few discussions about ancient magic.

Does this mean that the professor has recognized her learning and magic control level?

She began to think: In the first year, she has been learning to translate magic runes and practical magic runes, and in the next semester, she came into contact with magic rune circuits. Before the end of the semester, she successfully repaired the broken beaded bag;

during the summer vacation, she has been practicing carving magic runes and magic rune circuits with a magic rune carving knife;

and at the beginning of the new semester, she has been exposed to the knowledge of magic rune transformation, and is more focused on the understanding of magic runes themselves. She can't help but imagine: by the end of the third year, will she be able to directly master an ancient magic?

Seeing Hermione's full of energy, Felix added: "It is the simplest ancient magic. Don't imagine that it has any lethality." But this did not discourage her enthusiasm at all.

At the end of the practice, Hermione was rarely tired. She stood up and moved around. Her eyes swept across the room. The weird feeling was still so obvious, and the more she looked, the more awkward it became.

'Although the professor said that it was due to the changes brought about by the new perception, he still looked gloomy. She

decided to change her mind and stood in a corner of the room, looking around. Suddenly, her eyes lit up, and she picked up a pot of green plants and placed them on the professor's square table piled with books. She squinted her eyes and smiled.

"It looks much better this way."